Appliance for the continuous filtration of slime



A. E. PINK APPLIANCE FOR THE CONTINUOUS FILTRATION OF SLIIE Filed Nay12, 1928 3; Sheets-Sheet 1 A. E. PINK Aug. 12, 1930.

APPLIANCE FOR THE CONTINUOUS FILTRATION OF SLIME 3 Sheets-Sheet 2 FiledMay 12-, 1928 Aug-12, 1930. 4 -A. E. PINK APPLIANCE FOR THE CONTINUOUSFILTRATION OF SLIIE .Filed May 12. 1928 a sheets-sheet '3 III Arms/Viv?material; and is arran V are distributed over?a largelsurface 50i the rfrom solid matter. As in thecaseof any other T type of filteringappliance, sueh a filter,'if

v bytheslime-distributor 'filtering materialbefore ithas ceased tofunc,

I, ifny ntio ib off$harp1 tainfd and that partof theito granular}material in a ffin'e Estate) of division, I contained between suchassand, carbon; "cwdered coke oi'ranyfll I 'pulverulent material whichis insolublefin the e *liquorto be, filtered; is employed as filtering Aged on the fperfora'ted top of a. low'fpressuref chamber. j v The slimesV the log the perforated 7 bottom offt-h'eopenj tr medium which is of fsuch depth that the to p fiiwt th mass. offfilt liquor which issuesfrom. the bottom oft-he filtering bed is entirely orisubstantially freetron * r b schargs i. efiltr t l edo, fi tra on ha beentsene kbiyr d uqet ifif h de gli na mfi l i' fl leit lifio f -rbligh material continuousmovement so that fresh charged fresh, dl ai tflglifl y surfaces arecontinuously being played'upon nahtitj is tilted; L I'I'he tron; j 3 andby continuous i'iqtated' inadwriiontalli Tami 1y removing partly b i ded0 gg d ,centi-aFi'ftieeIaiisj'Z'bysundae n wwwmi ac niflieifi i fi fl ah v g. a ps ane zh zb ckeuelevater yps 8; an-e f 1 7 e rs i Jprovisiorifis forputbing thebueket" ele stationarywouldrapidly-becomecloggeda-nd B ore the i cease to function. In thepresent-invention this is overcome by giving to'the filtering tion andreplacing it pari passu with equivalent supply of freshmateria'l. n vTwo forms of carrying out my invention 7 I are shown in the annexeddrawings in which:

Fig. 1 is "a partly sectional elevationof 5 11 and a perforated waterpipe 12. The mate- I rial is carri d along the t y 9 b t l V of wa tarlub tbeipipem andfia Jintoa rennet iible receptacle 13, where thematerial battles and the water overflows into atankli,

" m whence it is discharged througlrpipe 15; washed granular materialmay be returned; for use again a'ndth'e washings therefrom be":

returned to the slimeto be-filtered.

' Befiifing w Figs. 15 we a: In'these drawh n onsi s o i-s ries Di -openfilers 1e, per-seed atthebo'tto n andsuitably joined together to form anendlessban one bf which is driven by a bel tfls fiom a sultgbledriver-1t). The top of the low pres f ure chamberis' also perforated andthe Inooithe filtering bed will then be hon- Figs. 1-4. In place oi a,elevawri ,rfimorethe fla d a em ath -lpt ll be discharged by gravity Zenarriv ng atlthe end Qfits horizontalti'avel, and. passing I andjover therespective wheels, me

over the pulley: 17 to the left of Fig. 5.

I fresh'supply of filtering materiallwill be chargedinto theemptytroughs 1,6" froma valvedhopger, 9: as: soon as they havecompleted; their return journey and passed over the pulley 17 to theright ofll'ig, 5, leaving each individualtrough in turn charged withfresh material beforecoming into the sphere ofaction of the slimedistributor. 1.; H 1

The discharged material falls by gravity to, ashallow tray 10 and iswashed. an

The rate of delivery of the slime to the fil! ter, the rate of travel(of the continuously mowing trough or troughs, the ,rate of, deliv seryofthefresh materialto the empty troughs and the rat/ep r moval of theblindedv material m'ay all be controlled as required by suitableandwell; known-means, "j

T1. In acontinuous filtering' apparatus,a Y series'ofindependentopenitroughs connected in series relationin endless chain forimmeans forguiding the troughs, in a substantially horizontal vplane-throughout=..an. operative v i w path, means at one endof the operativepath and (iooimrating' with the endless chain of troughs to invert saidtroughs for discharge, "means atlthe initial end ,of the o rative pathion delivering filtering media t ereto, means no 'arranged beyond saiddelivery means in the direct on of travel of the troughs for{directmaterial to be filtered to the troughs in success on, and'a lowpressure suction chambar, in a simultaneous communication with a a:pluralityof saidtroughs including th'at to v s V I thed'es l andlongitudinal, instead, of circular as described reference to Figs.

which the" material t be filtered is directed together with a number ofother troughs in e ing a frame, wheels mounted at the respective endsof: the iram ma wimbfl wp d between the wheels, a plurality of opentroughs connected inendlesschalnaelation and adapted to travel over thesuction lion and over pective wheels, means for delivering tilterinmaterial to thetrjoughs succession lmmeii at p e e ingythej ogperatipnod the p'aifticu ar trough and suct pni born; an

means for delivering: material t0 bdfi tfire to each trough insuccession at as point (if initial -cooperation rotjthat tl'011gh. and A'fi wus filtering apparatusinclud;

in a fram whels mountedatjthe respective n 8 u c n box. interp sedbetween ,gthe wheels, a lurality of ,1; in troughs Connected in eneSb'chhlnL-re and f adapted 'to' travel over' thef suction f g 01delivering filtering material to the troughs in -succession immediateloperation of the particu ar' trough and sue tion'box, nd means fordelivering; material to be filtered to each trough in succession atthepoint of initial cooperation. of that trough and suction box, thesuction boxhav ing a length in the direction of travelfof the troughs toat. all times act upon a p ii -ality d of said troughs.

In testimony whereof l ha've' hereunto set rn'y'hand this third day ofApril, 1928. e v v EDWARD PINK.

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